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ABThe Jugular Venous Pulse (JVP): A Window to the Right Heart
The JVP waveform reflects right atrial hemodynamics. Mastering its variants is key to bedside diagnosis.
📈 Normal Waveform:
➡️ ‘a’ wave – Right atrial contraction ❤️
➡️ ‘x’ descent – Atrial relaxation ⬇️
➡️ ‘v’ wave – Ventricular systole (atrial filling)
➡️ ‘y’ descent – Ventricular filling (TV opens)
🚨 Pathological Variants:
🔴 Giant ‘a’ wave: Resistance to atrial emptying (e.g., Tricuspid Stenosis, Pulmonary Hypertension) 🚫
⚡ Cannon ‘a’ wave: Atrium contracts against closed TV. Seen in AV dissociation (e.g., Complete Heart Block, VT) 💥
⚫ Absent ‘a’ wave: No coordinated atrial contraction. Hallmark of Atrial Fibrillation 📉
📉 Accentuated ‘x’ descent: Seen in Constrictive Pericarditis & Cardiac Tamponade 🫀
🌊 Prominent ‘v’ wave: Ventricular systole forces blood into atrium through incompetent valve. Sign of Tricuspid Regurgitation 🔄
📐 Deep ‘y’ descent & Kussmaul’s sign: Rapid early diastolic filling. Classic for Constrictive Pericarditis & severe TR.
#JVP #Cardiology #ClinicalMedicine #MedEd #FOAMed
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